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(Model) G. M. BALLARD.

Caster.

No. 240,221. Patented April 19,1881,

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UNITED STATES PATENT OEErcE.

GEORGE M. BALLARD, OF NEWARK, NEW JERSEY.

CASTER.

SPECIFICATION forming part of Letters Patent No. 240,221, dated Ap'ril 19, 1881.

Application filed February 10, 1881.

To all whom it may concern:

Be it known that I, GEORGE M. BALLARD, of the city of Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Trunk- Oasters; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

This invention relates to certain improvements in the device secured by Reissue-Patent No. 8,171, of which George Minchen and myself, jointly, are sole owners.

The object of this said invention is to reduce the cost of construction and to increase the strength and utility of the caster and it consists in a trunk-caster having an outer andinner plate united, the said outer plate having a transverse recess therein to receive the said inner plate, which inner plate has bearings form ed thereon adapted to project through said outer plate to receive the roller, and lugs upon the outer extremities thereof to engage with the outer plate to hold the two said plates together.

It also consists in the several conformations and combinations of parts, all of which will be herein fully described, illustrated, and claimed.

Referring to the accompanying drawings, in which similar letters of reference indicate like parts in each of the several figures, Figure 1 is a side elevation of a caster embodying my improvements; Fig.2, a back elevation of the same; Fig. 3, a plan view; Fig. 4, asection of the last, taken through line so; Fig. 5, a section of the same through line 3 Fig. 6, a detail view of the inner plate, showing fasteninglugs formed on the outer extremities thereof, by which the said inner plate is secured to the outer; and Fig. 7 is a plan view of the outer plate, showing a transverse groove or depression and recesses, for purposes hereinafter stated.

In carrying out my invention I construct the outer plate, A, with a shallow groove or de- (ModeL) pression traversing transversely the inner face of the bottom portion, 8, thereof, as shown. The central portion of said plate is removed, thus forming therein the aperture b, through which bearings in which to journal the roller are passed. To engage with said outer plate, A, I construct an inner plate, B, which is adapted to lie in the shallow depression a, the upper face thereof being flush with the upper surface of said outer plate, as will be understood.

Upon the under surface of the inner plate are formed bearings e, and fastening-lugs d are constructed at the outer extremities. The former project through the perforation b and form bearings for the roller, and the latter are adapted to be bent around the outer plate in the manner shown, to hold the two plates together.

I may form upon the outer edges of the bottom portion, .9, of the outer plate, A, recesses 6, Fig. 7, adapted to receive the lugs d, so that the said plate B shall not project over the plate A, as they are shown to do in Figs. 2, 3, 4..

Although corner-casters are alone shown in the drawings, I do not wish to limit myself thereto, as bottom casters can evidentlybe constructed to embody my improvements.

The frame for the roller, formed as herein stated, is secured to the trunk in the usual way, perforations f being provided for the passage of nails or screws.

The trunk bears against both the inner and outer plates, as will be apparent, caused by the weight thereof coming upon the claspinglugs cl.

The inner plate, being inclosed by the outer plate, and held in union therewith in the manner shown, forms a combination allowing of great facility in manufacture, and unites adequate strength with an expenditure of a mini- 0 mum amount of material.

Having thus described my invention, what I claim, and wish to secure by Letters Patent, ls-

l. A trunk-caster having inner and outer 5 plates, the said inner plate having bearings carryin g aroller and clasping-lugs formed thereon, and the outer plate having a depression to re- In testimony that I claim the foregoing I have hereunto set my hand this 5th day of Feb- 10 ruary, 1881.

GEORGE M. BALLARD.

Witnesses CHARLES H. PELL, OLIVER DRAKE. 

